Why is the output of this code 111111?

Question

This is the code. I tried to solve it, but I can\'t understand how its output is 111111?

public class Test { 
      public static void main(String[] args) {
         


        

Answer 1

Hi I will try to explain what is happening in this code snippet

public class Test { 
  public static void main(String[] args) {
    int list[] = {1, 2, 3, 4, 5, 6};

This line is the equivalent of the following code

    int list[] = new int[6];
    list[0] = 1;
    list[1] = 2;
    list[2] = 3;
    list[3] = 4;
    list[4] = 5;
    list[5] = 6;


    for (int i = 1; i < list.length; i++)
      list[i] = list[i - 1];

this loop is the equivalent of the following code

    list[1] = list[0];
    list[2] = list[1];
    list[3] = list[2];
    list[4] = list[3];
    list[5] = list[4];

which because list[0] = 1 is the equivalent of the following

    list[1] = 1;
    list[2] = 1;
    list[3] = 1;
    list[4] = 1;
    list[5] = 1;


    for (int i = 0; i < list.length; i++)
      System.out.print(list[i] + " ");
  }
}

Which is why you are getting the output you are getting